The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data
Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increa...
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Wiley
2015-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2015/481834 |
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| author | Nicola Scafetta Adriano Mazzarella |
| author_facet | Nicola Scafetta Adriano Mazzarella |
| author_sort | Nicola Scafetta |
| collection | DOAJ |
| description | Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increased, that is, the region has cooled. During the last 7 years the Arctic sea-ice area has stabilized while the Antarctic sea-ice area has increased at a rate significantly higher than during the previous decades; that is, the sea-ice area of both regions has experienced a positive acceleration. This result is quite robust because it is confirmed by alternative temperature climate indices of the same regions. We also found that a significant 4-5-year natural
oscillation characterizes the climate of these sea-ice polar areas. On the contrary, we found that the CMIP5 general circulation models
have predicted significant warming in both polar sea regions and failed to reproduce the strong 4-5-year oscillation. Because the CMIP5
GCM simulations are inconsistent with the observations, we suggest that important natural mechanisms of climate change are missing in the models. |
| format | Article |
| id | doaj-art-69ccef6110b14eb2955bc90515eb4118 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-69ccef6110b14eb2955bc90515eb41182025-02-03T07:24:10ZengWileyAdvances in Meteorology1687-93091687-93172015-01-01201510.1155/2015/481834481834The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature DataNicola Scafetta0Adriano Mazzarella1Meteorological Observatory, Department of Earth Sciences, Environment and Georesources, University of Naples Federico II, Largo S. Marcellino 10, 80138 Naples, ItalyMeteorological Observatory, Department of Earth Sciences, Environment and Georesources, University of Naples Federico II, Largo S. Marcellino 10, 80138 Naples, ItalyHere we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increased, that is, the region has cooled. During the last 7 years the Arctic sea-ice area has stabilized while the Antarctic sea-ice area has increased at a rate significantly higher than during the previous decades; that is, the sea-ice area of both regions has experienced a positive acceleration. This result is quite robust because it is confirmed by alternative temperature climate indices of the same regions. We also found that a significant 4-5-year natural oscillation characterizes the climate of these sea-ice polar areas. On the contrary, we found that the CMIP5 general circulation models have predicted significant warming in both polar sea regions and failed to reproduce the strong 4-5-year oscillation. Because the CMIP5 GCM simulations are inconsistent with the observations, we suggest that important natural mechanisms of climate change are missing in the models.http://dx.doi.org/10.1155/2015/481834 |
| spellingShingle | Nicola Scafetta Adriano Mazzarella The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data Advances in Meteorology |
| title | The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
| title_full | The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
| title_fullStr | The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
| title_full_unstemmed | The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
| title_short | The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data |
| title_sort | arctic and antarctic sea ice area index records versus measured and modeled temperature data |
| url | http://dx.doi.org/10.1155/2015/481834 |
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